21812972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{3307}}^1$

素因数の和:3425

約数の個数: 24

約数和(自身を含む): 40847184

約数和(自身を除く): 19034212

約数列:

[1, 2, 4, 17, 34, 68, 97, 194, 388, 1649, 3298, 3307, 6596, 6614, 13228, 56219, 112438, 224876, 320779, 641558, 1283116, 5453243, 10906486, 21812972]

約数ペア:

[(1, 21812972), (2, 10906486), (4, 5453243), (17, 1283116), (34, 641558), (68, 320779), (97, 224876), (194, 112438), (388, 56219), (1649, 13228), (3298, 6614), (3307, 6596)]